Wave Transmission through Power-law FGM DoubleWalled Cylindrical Shell Lined with Porous Materials

سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 827

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شناسه ملی سند علمی:

ISAV03_094

تاریخ نمایه سازی: 29 تیر 1393

چکیده مقاله:

A prediction of the sound transmission loss of a cylindrical structure whose walls sandwich alayer of porous material is presented within the framework of the Classic theory for FGM shells.The infinite shells composed of metal and ceramic with power-law distribution of volume fractionthrough the thickness. In this work, porous materials are treated as elastic models. Through consideringthe effective wave component, the porous layer is modelled as a fluid with equivalent properties.Transmission Loss through the multi layered structure is obtained analytically in a broadband frequency by using the approximate method and then, the results are compared.

نویسندگان

Hamed Ramezani

Mechanical Department, Tarbiat Modares University

Gholam Hossein Rahimi

Mechanical Department, Tarbiat Modares University

Abbasali Mohammadi Dehabadi

Mechanical Department, Tarbiat Modares University